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by dragontamer 2928 days ago
Threadripper ships in single-node interleaved memory by default, at least on my motherboard. This increases latency but doubles bandwidth (because now all 4-sticks of RAM are interleaved).

There's a BIOS setting. I personally enabled it using AMD's "Ryzen Master" program to setup NUMA mode (aka: "Local" mode in Ryzen Master).